45#%%5}%%$#$#5#%$%$#3#R#%#S%3A8%8##¶#3#3#<$#$%$#23 #22 AT PO
第二第張四第日十二月一十年两己展夏 WAH KI
ise
##
僑
*3#$%$#!
DE
報日橋
日期星日八廿月二十年九六九一曆公年八十五國民華中育教僑華
三草履蟲的生殖法
無性生殖:潘橫二分体生殖
广大核
70英文中學會考試題預習專欄
堅道英文書院主編
經濟及公共事務科(八)
Hoonete & Publie
Lecture No.
(1) To facilitate our daily transactions, we have
come to use a cennon denominator to express values
and units of account. Under this system the b
difficulties created by barter (the exchange of gooda for gooda) can be overcome, We call this system the sonsy economy, under which we have two main types of medium of exchange.
The first is known as legal tender. This is by
塊腹
中文中學會
會考試題預習專欄
在環境優馬み(食 後味细胞中段、最後细胞中投梅菜成子细
物豐富家
·漸漸收缩 小枝苗生行一次有絲潆秀脆香消失
Question (1) Write notes on:
The Roney 60one
生物科 (八)
·莫愛桐。
從此分裂便法完成蠢作
The rule of Law
Answers
漸形成
·水綿的綠道
無性生殖:屬二个体生殖
有性生殖、薪嬉合生鱸
净细胞核
新細胞壁形成後,分裂使告完 成二子細胞条具有細胞核和 绿芽体,可繼續行完合作用而 生長增大,因此水綿絲價新
環境優良時水線細胞壖至一 漸增長,水綿絲内的细胞 定大小时便行分裂, 首先细・生理各自獨立,無合工現象, 胞核行-次有维分裂,成:核。 但细胞有桐建的特性故
随毒細胞情亦分裂高=部, 成羣体存在。
在二部細胞貨和核明溂形
華癪⁂絰釒次凞性分裂达,其调体便圣生生活灵退现象,如体 漸漸变化纖毛 分裂生殖能力亦減少此時便要舉 行一次接合生殖,以恢復其生活能力。
合核
成新细胞壁。
性生殖:屬於接合生殖,接盒大分梯形
高例转述其過程、雄配子
在環境省時
綿冰靠近相鄰接觸和時有隔膜
突起。
至唯胆子类结合成一 裂次共四核算中三核漸消失,餘下┛歧缳 ◆子,會子具翆碗 優良時此合水戦内物質劇活動合 離原來細胞碰殻 壁被擠破,細胞核不断分裂,形成 後沉於水底可抗 意劣環境。
製成一條新水綿絲。
第二分鐘生殖
花子形成山陸両種
0-X-8
大森長到一定限度的時環境良時代管進行 分裂,首先細胞核行簡單的有絲分裂 分為二核,同時細 胞亦在中部收縮把原生質截分為二,用此形成二手知 胞每־細胞具-核,分裂便告完成。 自孢子形成生殖
轰每在氯候寒冷,水池乾爛時或经多次分裂,体内 食物粒和結晶部增大,失去再分裂之能力,便會行此種
首先麤体收縮成一圈,消失偶足之形態,漸漸外资分 物質包圜,細胞外形成厚彀,其內細胞核,經多次分裂成 多核,細胞绹赤心泉淤核外,故構成數百網小细胞, 細胞ż外槀形诚胞殼而成孢子,孢子散出原來蟲体之擘 殼外便可随风散播,若遇溫暖之天氣,且處於水中時龐 殼破裂,由一孔不形成一变形蟲,此行為你生殖外,還 有被抗惡劣環境和協助散播之效
-
首先二⁂体相遇口溝烟 餘下之核再分裂一次,形成一大而不杓動
核集中三 (技)。部分的側は質
8-8
合核分裂三 八核其中有分裂後成=新细体,各具大核, 心個变大核,四佃爱小猪,小 一小核,最後每個体文小核两分 核中,再有三個消失,餘,第一次同時细胞亦橫分裝一次每 一個小核,小核再分裂一次,新佣体具有一大孩和一小枝,故 同時麤体亦横分裂一次。 拥体接合共生成八個新備体
水螅的生殖法
無性生殖
朶出芽生殖:環境優良時,由於間細胞
新分化成各類細胞,使水蟌块壁有一部分 凸起漸形成一身体。此芽体表面的腔腸缚 母が膣腸相通的止芽体渤海浜 出口和觸手,於是便生成子水螅。
此子水螅器在安定狀態時,仍附於母体, 運可捕食和行出芽生殖,此時水螅每你澍 枝状;若水流動盪或其他原,子水態之 基部收縮構成基盤,脱离值母体而生活。 b再生生殖:水螅再生力强,每每在不正常環 境下受外力衝擊成=或數段,每段可長出失 去之部分而成數個体。
2有性生殖:伤两性生殖
Y Y
水螅在環境電時,例如過冷(秋末冬天)或長期黑暗,水遇 份污濁水螅更由間細胞分化出精巢或卵巢附於外胚骨精 巢可有一至數個錐状突起,一般長在体斡之上方,卵巢數目較 少每每祗有一個,半球状突起,一般長在体斡之下方。
水螅玉精巢卵巢,每不同時發生或不同時成熟,故水蛇通常 是打算体受精而生殖,很少機會是行自体受精而生磕的。
水螅的每一间精巢裳含無數精子,每印藥象衹有一個卵子精 子成熟散水裏由卵製口進和其内之印子結合成合子 合子在裏面漸分裂,演發成胚胎,外殼包裹,彀有保護作用, 真殼文胚胎當卵巢破裂後洗於水底,抵抗恶劣環境,至天 氯和暖,胚胎再演發成为
前期練習解答下期刊出
-
角質
law to be accepted in payment of a debt. In Hong Kong our legal tender is made up of the dollar notes fasued by the Hong Kong and Shanghai Banking Corporation, the Chartered Bank and the Heroantile Bank, and the coins and cant-notes issued by Governsent.
In paysandtof small suss legal tender is Sonvenient to use. It is, on the other hand, unsare tol iam legal tender when large sums of money, #ay......... running into hundreds of thousands of dollars, are involved. Besides it ia cumbersome to carry than
around. While it is true to say. that legal téider is often full of dirt and therefore unhygieste, we must not lose sight of the fact that anything can become dirty if the user does not particularly wish to keep it clean.
The second is known as representative money. Although the law does not find one to representative soney in payment of a debt, it has becons vary common and has proved a dangerous rival of legal tender because of its increasing popularity.
Under representative money can be included chaques, credit cards,
Money orders and postal orders;
Cheques enable one to araw legal tender from banre, They are gonvenient to use when payments involve very large sume, and they are also very safe especially if they are crossed, in which case they become unnegotiable, When payment is made through the post, cheques are invariably used. It is often remarked that generosity is attached to chèques, and one often wonders what this actually implies. Each cheque carries a stamp duty of twenty cents, and thus only generous people can afford this additional sum, Payments made by sheques are also mora dignified änd personal, ao mest cheques to day are printed with the payars! names,
Many large department stores, restaurants an. hotala haya issued credit cards to their regular oustomers. These garde entitle their halders to the use of credit. it the end of the month sach oradit- card holder will receive a statement of account. He will then pay for all bills that are outstanding. In the United States of Americs the use of oradit cards is far more papalar than legal tender. In Hong Kong, oredit cards are only issued to what the department stores or hotels consider "V.I.P. 'S". The main. qualification fer one to apply for a credit card is that he must be oreditworthy,
Postal Orders and money orders are issued by the Post Office. They provide one a means of settling debt through the post office. They are similar to bank drafts which are more or lear the same as
crossed
chaques.
|(3) He are governed by an important English Legal
doctrine known as the rule of law.
fhis doctrine emphasises the recognition of the personal freedom of each oitison. It means that we are free to live a happy life, ca
earning a decent livin
and enjoying the facilities the educational system of the country can offer us, and pursuing what we believe to be geed for us.
so one, under the rule of law, can be exempted from the laws of the country. Everyone is bound by
law, so that should his act one come inte conflict wit the law, he will be tried and if
proariotsd, punished.:
The rule of law also implies that disputes must be settled by law. Fo man, no matter in what state of sind he is, ons take the law into his own hande. He sust let Justica run its own course.
The Government, on the other hand, has neither. the power nor the right to cause any interference, to the work of the law osants or the decisions of the angistrates or judged. This arises from one of the sacred principles of British Justice which states tha the Judiciary Jounoil must be an independent body which is only slightly related to the government.
The rule of law also lays emphasis on the impartial treatment of everyone. No man is to be treated differently from anc ther under the same circumstances. The law must treat everyone in the same way. Thus, punishment cannot vary from man to man bat fran ezine to crime..
Finally the rule of law ensures that no one is brought to the court without a reasonable excusa, Only when a person has violated the law is he to be brought before the court to be tried.
It can be seen that from the implications of rule of law, we enjoy a reasonable amount of democracy.
(未完轉入第四張第三頁)
No comments yet.
Private notes are available after approval.